Help: Noisy Speedometer??????

[67GTCOUPE]

Hi Guys:


I bought a brand new speedo cable, and installed.

My speedo itself has a a needle which jumps around at certain speeds, and makes a clicking noise at certain speeds......not all the time.

What the heck is wrong and how do you fix it????

Thanks

 

[Max Power]

Did you lube the cable before installing it?

 

[67GTCOUPE]

Did you lube the cable before installing it?

Yes I sprayed some lube on it.......pehaps not enough????

 

[spirockp]

It's not the cable, it's the speedometer. If you take it apart and run it with a drill you'll see it better. Before I installed my new cable and my old speedo I bench tested it and the speedo did the same thing.

 

[67GTCOUPE]

It's not the cable, it's the speedometer. If you take it apart and run it with a drill you'll see it better. Before I installed my new cable and my old speedo I bench tested it and the speedo did the same thing.

What is the solution.........buy a new speedo, or lube it or hit it with large object?

 

[Flatout289]

My speedometer was doing the same thing. I thought it was the cable and replaced it--no difference. It turned out to be the speedometer drive gear in the transmission was worn out. Just something to check if the "drill test" doesn't show a problem with the speedometer.

 

[spirockp]

I am replacing the speedo. The bench test proved it was a bad speedo.

I was thinking of doing it anyway. I have had my 66 for just short of 4 years and I have not driven it yet. A new speeo with zero miles will show exactly what I have driven. When I get it on the road. Should be there by Spring of 2007.